Plug.



PATENTED DEG. Z7, 1904.

E. M. HALL.

PLUG.

APPLICATION FILED APR.2G,1904.

d W E/ WITNESSES:

UNITED STATEs Patented December 27, 1904.

PATENT OEEIcE.

PLUG.

SPECIFICATION forming part of Letters Patent No. 778,662, dated December27, 1904.

Application filed April 26, 1904. Serial No. 204,938-

T0 (tZZ whom it may concern:

Be it known that I, EDWARD MARYoN HALL, a citizen of the United States,and a resident of Raymondville, in the county of St. Lawrence and Stateof New York, have invented certain new and useful Improvements in Plugs,of which the following is a specification.

My invention is an improvement in plugs for use in rolls of paper, andhas for its object to provide a novel construction whereby to preventthe plug from slipping out of the roll during storage and shipment ofsuch paperrolls; and the invention consists in certain novelconstructions and combinations of parts, as will be hereinafterdescribed and claimed.

1n the drawings, Figure 1 is a sectional view showing two of my improvedplugs as in use. Fig. 2 is a side view of the plug. Fig. 3 is an endview of same, and Fig. A shows a somewhat different construction fromthat shown in Figs. 1 and 2.

Plugs for paper-rolls are ordinarily smooth on their outer sides andoffer no resistance to the slipping of the plug out of the roll as theroll is being conveyed to the consumer, as during such transit the plugsshrink and drop out or otherwise slip out of the paper-roll, and thelatter will close and cannot be reopened, and much loss is occasionedthereby.

By my invention 1 seek to so construct the plug that it will be grippedby the paper-roll and cannot drop out of place. To this end I form theplug A, which may be of wood or other suitable material, with acircumferentially-extending groove A, having a square wall a, forming ashoulder facing the outer end 1 of the plug, the other wall, a, of theplug being preferably sloped, as shown, to facilitate the introductionof the plug into the paper-roll. This sloped wall a of the groove A issimilar to the sloped surface A at the outer or point end 2 of. theplug, which end is reduced so the plug may be readily inserted in thepaper-roll. The groove A is preferably annular, extending entirelyaround the plug, and may be quickly and accurately formed by turning inthe usual way without increasing to any considerable extent the cost ofthe plug.

If desired, V-grooves may be employed in series of two or more, asillustrated in Fig. A of the drawings.

The invention will be found especially useful on bag-paper, which is notusually wound on a core, but is wound on a shaft, the shaft being pulledout and plugs inserted in theends of the roll, the plugs keeping thehole in the roll open so the man who runs the bagmachine can insert hisshaft to wind the paper off the roll.

The plugs are provided with holes B to receive a hook for pulling theplugs out.

By my invention it will be noticed I provide, as shown in Fig. 1, awound roll of paper provided in its ends with plugs, which are providedwith annular grooves and on opposite sides of such grooves with smoothunobstructed cylindrical portions, which eXtend in a direction parallelto the axis of the wound paper-roll and support the roll, as shown inthe said Fig. 1.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A wound roll of paper provided in its ends with plugs having betweentheir ends annular grooves one of whose walls form shoulders facing theouter end of the plug and whose other walls are sloped, and provided onopposite sides of said groove with cylindrical surfaces fitting in thebore of the roll, substantially as and for the purposes set forth.

2. A plug for use in paper-rolls provided with an annular groove one ofwhose walls forms a shoulder facing the outer end of the plug and whoseother wall is sloped, and provided on opposite sides of said groovewith. cylindrical surfaces fitting within the bore of the roll,substantially as set forth.

3. A plug for use in paper-rolls provided with an annular groove one ofwhose walls forms a shoulder facing the outer end of the plug andprovided adjacent to said groove with a cylindrical surface to fitwithin the bore of the roll, substantially as set forth.

i EDWVARD MARYON HALL.

Witnesses:

FLORENCE H. FINNEGAN. HARRY G. CAMPBELL.

